Adhesive composition.



UNITED STATES PATENT OFFICE.

MAX SMETANA, OF PHILADELPHIA, PENNSYLVANIA.

A DHFISIVE COMPOSITION.

Specification of Letters Patent.

Patented Feb. 11, 1908.

Application filed larch 20.1907 Serial No. 363.482.

; lowing is a specification.

My invention has relation to adhesive compositions; and it contemplatesthe provision of an economical adhesive composition ossessed of a highdegree ofelastic bin ing 4 pro apse of a short period power andcalculated to save in the production of work by ex editiously drying,and one which by reason 0 its nature is ada ted to be deposited insufficient quantity or strong binding on the surface of a part that isto be connected to another part and yet is not liable to enetrate to anundue extent into the material of the said part.

My composition consists of glue made according to the ordinary, wellknown formula orany other formula consonant with the purose of myinvention, and finely subdivided bers, referabl fibers from paper andcellulose, t ough ot er fibers possessed of capillary characteristicsand insoluble in water, such for instance as fibers from leather, linen,wool, cotton, silk, hair, wood, and analogous materials, may be employedwithout involving departure from the scope of my invention as defined inthe claims appended.

In the preferable practice of my invention, the finely subdivided fibersare mixed with glue prepared in the usual Waybut not dried and not quitefinished; the proportion of the fibers to theglue depending on thecharacter of the parts to be connected. The roper ortion of fibers isbest determined y a plyinga thin layer of glue to the surface of t e artto be connected, and observing after the are saturated, if there is anadequate layer of fibers on the glued surface'i. 6,, a layer sufficientto assure the proper binding of the part to another part. This isparticularly true whefileather, paperand soft woods are to .be lue g Thefibers mixed with the glue take up by capillary attraction the moistureof the glue and give off such moisture to the atmosphere or in otherwords serve as a siccative; and it will also be manifest that the fibersrender the adhesive mixturetough and elastic, that they assure thesurfaces of the parts to be conwhen all of the fibers nect ed beingjagged and calculated to closely fit each other, and that by settling onthe sur-;

face of the glue they contribute materially to the strong and durablecohesion of the parts.

This latter is especially characteristic of my composition when the sameis employed in the connection of parts of wood, leather and paper.

t will be gathered from the foregoing that sition is advantageous,because the my com 'le enhancing the binding strength fibers, w

of the compositionrender the same much cheaper than a corres ondingquantity ofprevent gluealone; also, that t e fibers, by ing penetrationof an undue quantity of glue into the material or materials of the partsconnected effect a saving of glue, and this while expediting drying ofthe glue and composition as a whole, and in that way contributin to thecheapness of the work roduced.

W enchea production of work -1S sought, I use paper fi ers because ofthe facility and cheapness with which the same may be produced.

While I have designated glue as the preferable adhesive material myinvention consists broadly in the combination of fiber substantially asspecified with any suitable adhesive substance as for instancestarchpaste, flour paste, dextrin, albumen, shoemakers pulp, etc.

Havin described my invention, what I claim an desire to secure byLetters Patent, 182- 1. 'An adhesive composition capable of adhering tothe surface of a part that is to be connected to another part' andcomprising an adhesive substance, and fibrous material commingled withthe adhesive substance for taking up moisture from the same and givingoff such moisture to the atmosphere to accelerate drying of thecomposition; the proporof fibers suflicient for the'proper binding ofthe part to another part.

3. adhesive composition capable of ad- 'hering to the'surface of a partthat is to be connected to another part and comprising glue and afibrous material combined therewith; the proportions ing such as toassure the provision on the glue of a layer of fibers sufficient for theproper binding of the part to another part.

4. An adhes ve composition capable of adhering to the surface of a partthat is to be connected to another part and comprising an adhesivesubstance and fibrous material commingled with the adhesive substancefor taking up moisture from the same and giving off such moisture to theatmosphere to accelerate drying of the composition; the proportion ofadhesive substance being suflicient to saturate all of the fibers of thefibrous material and such as to assure the provision on the adhesivesubstance of a layer of fibers sufficient of the ingredients be? fortheproper binding of the part to another art. p 5. An adhesivecomposition capable of adhering to the surface of the part that is to beconnected to another part and com rising lue and fibrous materialpossessed oFcapilarity and insolubility, commingled with the glue; thepro ortion of glue being sufficient to saturate all the fibers of thefibrous material and such as to assurethe provision on the glue of alayer of fibers sufiicient for the proper binding of the part to anotherpart.

In testimony whereof I afiix my signature in presence of two witnesses.

MAX SMETAN A.

Witnesses:

BERNHARD T. MILLS, H. MEIER.

